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(Systematic Programming) How to Code : Simple Data - Coggle Diagram

- - - - The Recipe
        
        1. Possible Structure Definition
        
        2. Type Comment
        
        3. Interpretation
        
        5. A Template
        
        4. Examples
        
        6. Template Rules
      - Data Definitions
        
        Interval
        
        What is it ?
        Number with a certain range
        
        Body : (... x)
        
        Examples :
        
        [0 , 10]
        
        [0, 25)
        
        Enumeration
        
        What is it ?
        when the information to be represented consists of a fixed number of distinct items.
        <examples are redundant for enumerations>
        
        Examples :
        The color of the traffic light , light is one of :
        
        "red" Atomic Distinct Value
        
        "yellow" Atomic Distinct Value
        
        "green" Atomic Distinct Value
        
        Body :
        check if the parameter is one of the lights and put else statement if it is necessary
        
        Simple Atomic Data
        
        What is it ?
        it is atomic non-distinct
        
        Examples :
        
        Number (any number not a specific one)
        
        String (any word not a specific string)
        
        Boolean
        
        Image
        
        Interval like Number [0, 10) (range of numbers)
        
        Body : (... x)
        
        Itemization
        
        What is it ?
        data comprised of 2 or more subclasses, at least one of which is not a distinct item.
        
        Examples :
        is one of:
        
        false Atomic Distinct Value
        
        Number Non-distinct
        
        Body :
        check if the parameter(s) is one of the types of the data in examples and put else statement if it is necessary
        
        Compound Data
        
        What is it ?
        use structures when two or more values naturally belong together.
        
        Examples :
        The x and y Position of the ball
        (define-struct ball (x y))
        (make-ball Number Number) a ball at x and y position
        
        Body :
        (... (ball-x b)
        (ball-y b))
        
        References to other defined type
        
        self-referential or mutually referential
      - Types of Data
        
        Atomic Distinct Value
        Examples:
        "Red", False, Empty
        
        One of : Enumerations, Itemization
        
        Atomic Non-Distinct
        Examples
        Number, String, Boolean, Image, Intervals
    - - The Recipe
        
        4. Code the function body
        
        5. Test and Debug Until success
        
        3. Inventory, Template, Constants
        
        2. Examples
        
        1. Signature, Purpose, Stub